Stamping apparatus



Nov. 19, 1968 Filed May 24, 1966 Fig.

T. J. TARGOSH 3,411,437

STAMPING APPARATUS 2 Sheets-Sheet 1 Ted J Targosh INVENTOR.

Nov. 19, 1968 T. .1 TARGOS H STAMPING APPARATUS -Sheet 2 2 Sheets Filed May 24, 1966 Tea J Ta/gosh INVENTOR.

BY Anomqs United States Patent 3,411,437 STAMPING APPARATUS Ted J. Targosh, 18065 Mount Elliott, Detroit, Mich. 48234 Filed May 24, 1966, Ser. No. 552,594 14 Claims. (Cl. 101-3) ABSTRACT OF THE DISCLOSURE I This invention relates to apparatus for stamping printed indicia on different surfaces of workpieces utilizing available machine tools to which the apparatus of the present invention is attached.

In accordance with the present invention, a stamping fixture is attached to a moving table of a milling machine, for example, for movement thereof below pressure exerting rollers which engage either a workpiece or type elements through which printed indicia is impressed on a surface of the workpiece. The stamping fixture is arranged to accommodate the stamping of indicia on different shaped workpieces placed either between the roller and the type holder or in the fixture itself.

The stamping fixture of the present invention is more versatile than stamping apparatus or attachments heretofore available because of its ability to accommodate the stamping of indicia on either fiat or curved surfaces and to employ either a direct pressure method or a rolling pressure method in connection with the stamping operation. Further, the stamping fixture employs standard type elements capable of being installed or replaced in a rapid and facile manner within the stamping fixture.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

FIGURE 1 is a side elevational view of the stamping apparatus associated with one form of the present invention.

FIGURE 2 is a side elevational view of the apparatus shown in FIGURE 1.

FIGURE 3 is a top plan view of the stamping fixture as viewed from section line 3-3 in FIGURE 1.

FIGURE 4 is a transverse sectional view taken substantially through a plane indicated by section line 44 in FIGURE 3.

FIGURE 5 is a partial front elevational view of the stamping apparatus being used in connection with a workpiece different from that shown in FIGURE 1.

' FIGURE 6 is a side section view taken substantially through a plane indicated by section line 6-6 in FIG- URE 5.

FIGURE 7 is a side section view similar to FIGURE 6 with parts shown in section, associated with the stamping of a third type of workpiece. FIGURE 8 is a perspective view showing the disassembled parts of the stamping fixture.

Referring now to the drawings in detail, and initially to FIGURES 1 and .2, it will be observed that the stamping fixture of the present invention generally denoted by reference numeral 10 is mounted on the moving table 12 of a milling machine for example having a top work sur- 3,411,437 Patented Nov. 19, 1968 face 14 with a work clamping slot 16 therein and a work engaging fence 18. Associated with the machine is a stationary frame 20 from which a support bar 22 projects above the table. Also extending from the frame about an axis parallel to the support bar and perpendicular to the direction in which movement is imparted to the table 12, is an arbor 24. The arbor is received through an opening in a support plate 26 clamped to the support bar 22 by the bolt assembly 28. In the form of the stamping apparatus shown in FIGURES 1 and 2, a pair of pressure exerting rollers 30 are rotatably mounted by the support plate 26 adjacent the lower edge 32 thereof aligned above the stamping fixture 10. Alternatively, a single pressure engaging roller 34 may be rotatably mounted adjacent the lower end of the support plate 26 as shown in FIGURES 5, 6 and 7. The selection of the number of rollers as well as its vertical adjustment above the table 12 will be determined by the size of the workpiece and the type of surface on which indicia is to be stamped as will be hereafter explained.

Referring now to FIGURES 3, 4 and 8 in particular it will be observed that the stamping fixture 10 includes a base member 36 adapted to be secured to the top surface 14 of the table. Toward this end, the base member includes at opposite longitudinal ends thereof a pair of extensions 38 having slots 40 adapted to receive fasteners 42 which extend into the slot 16 for securing the base member to the table. Also formed in the base member, is a longitudinal groove 44 which underlies and is in alignment with the pressure exerting rollers 30 or 34 aforementioned. A pair of guide studs 46 are secured to the base member adjacent the side thereof abutting the fence 18 and extend upwardly from the base member for slidably mounting a type holder generally referred to by reference numeral 48.

The holder includes a longitudinal slot 50 which extends vertically therethrough. A pair of vertical bores 52 are formed in the holder through which the guide studs 46 extend so as to vertically guide positioning of the holder above the base member 36, with the slot 50 aligned between the groove 44 and the pressure exerting rollers 30 or 34. The slot 50 is thereby adapted to receive and position a plurality of type elements 54 as well as blank spacer elements 56. The type elements within the slot 50 are vertically positioned therein by means of a holding wire 58 received within a longitudinal bore 60 formed within the holder parallel to and intersecting a vertical side wall of the slot 50. The wire 58 will therefore engage locking notches 62 formed in the type elements 54 so as to hold these elements with the opposite ends thereof projecting from the upper and lower parallel surfaces of the holder. An assembly screw 68 is also threadedly received through the same end of the holder from which the locking wire 58 extends so as to clamp an essembly of type elements and spacer elements within the slot 50.

Also associated with the stamping fixture, is an insert 70 adapted to be received within the groove 44 of the base member in one of two positions exposing either a flat backing surface 72 flush with the top surface of the base member as shown in FIGURES 4 and 7 or a V-shaped backing surface 74 as shown in FIGURE 6. Thus, the stamping fixture is rendered operative to accommodate the stamping of different types of workpieces.

As shown in FIGURES 1 through 4, the workpiece 76 upon which indicia is to be stamped, includes a cylindrical surface 78 engaged by the ends of the type elements 54 projecting above the holder. Accordingly, the assembly of type elements is arranged so that the printing ends 80 thereof project upwardly. The lower ends of the type elements therefore engage the fiat backing surface 72 of the insert in order to impress the type indicia on the cylindrical surface 78 of the workpiece in response to movement of the table relative to the pressure exerting rollers 30. The vertical height of the table is therefore adjusted so that the cylindrical workpiece 76 will be in contact between the rollers 30 and the projecting ends 80 of the type elements, as shown in FIGURE 1. It will therefore be apparent that movement of the table will cause the workpiece 76 to roll relative to the holder 48 so as to impress the indicia on the cylindrical surface 78. On the other hand, when the indicia is to be stamped on a workpiece without any rolling action, the workpiece is disposed between the holder 48 and the base member 36 as shown in FIGURES 5 and 7. In such case, the holder 48 with the type elements assembled therein are assembled on the base member so that the type ends 80 of the type elements project downwardly and engage either the cylindrical surface 82 of a workpiece 84 as shown in FIGURES 5 and 6 or the fiat surface 86 of a workpiece 88 as shown in FIGURE 7. Pressure will be exerted by th roller 34 on the upwardly projecting ends of the type elements as the stamping fixture is carried by the moving table 12 below the pressure exerting roller 34. Where the surface being stamped is cylindrical as shown in FIG- URES 5 and 6, the insert 70 is positioned within the groove 44 so that the V-shaped backing surface 74 thereof receives the workpiece. Where a fiat surface is being stamped as shown in FIGURE 7, the insert 70 is positioned so that hte flat backing surface 72 is exposed as shown in FIGURE 7.

It will therefore be appreciated from the foregoing description, that the stamping fixture may accommodate the stamping of indicia on workpieces of dilferent sizes and workpieces having different surfaces including both fiat and cylindrical surfaces. Further, the changing of the type and the reconditioning of the stamping fixture for different types of workpieces is facilitated.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. In combination with a stationary frame rotatably mounting a pressure exerting roller member about a fixed axis and a work supporting table mounted for movement in spaced relation to the roller in a direction perpendicular to said fixed axis, a stamping fixture for a workpiece comprising, a base member secured to the tabl having a groove therein, a holder adjustably mounted on said base member, a plurality of type elements received within a slot extending through the holder in alignment with the groove, said holder including removable means for locking the type elements in the slot projecting at opposite ends from the holder, said type elements having ends adapted to engage a surface on said workpiece when disposed between the holder and one of the roller and base members and an insert received in said groove having a backing surface resisting pressure transmitted from the roller member through the type elements.

2. The combination of claim 1 wherein said removable means comprises, a locking wire received within a bore formed in the holder and notches in the type elements aligned with the bore.

3. The combination of claim 2 wherein said surface of the workpiece is cylindrical and adapted to be engaged by the roller member.

4. The combination of claim 3 wherein said backing surface of the insert is flush with the holder to engage the type elements.

5. The combination of claim 1 wherein said backing surface of the insert is adapted to engage the surface of said workpiece between the holder and the base member.

6. The combination of claim 5 wherein said surface of the workpiece is cylindrical and adapted to be engaged by the roller member.

7. The combination of claim 6 wherein said removable means comprises, a locking wire received within a bore formed in the holder and notches in the type elements aligned with the bore.

8. The combination of claim 1 wherein said backing surface of the insert is flush with the holder adapted to engage the surface of said workpiece between the holder and the base member.

9. The combination of claim 8 wherein said surface of the workpiece is fiat.

10. In combination with a stationary frame rotatably mounting a pressure exerting roller member about a fixed axis and a work supporting table mounted for movement in spaced relation to the roller in a direction perpendicular to said fixed axis, a stamping fixture for a workpiece comprising, a base member secured to the table having a groove therein, a holder adjustably mounted on said base member, a plurality of type elements received within a slot extending through the holder in alignment with the groove, said holder including removable means for locking the type elements in the slot projecting at opposite ends from the holder, said typ elements having ends adapted to engage a surface on said workpiece when disposed between the holder and one of the roller and base members and backing means received in said groove for alternatively supporting the workpiece between the holder and the roller or base members.

11. The combination of claim 10 wherein said removable means comprises, a locking wire received within a bore formed in the holder and notches in the type elements aligned with the bore.

12. The combination of claim 11 wherein said backing means comprises an insert having a flat backing surface and a V-shaped surface alternatively exposed for pressure contact engagement.

13. A stamping fixture for a workpiece comprising: a base member having a groove therein, backing means having'a fiat backing surface and V-shaped surface received in said groove and alternatively exposed, a holder adjustably mounted on said base member, a plurality of type elements received within a slot extending through the holder in alignment with the groove, said holder including removable means for locking the type elements in the slot projecting at opposite ends from the holder, said workpiece having a surface engaged with the ends of said type elements wherein said backing means resists pressure transmitted through the workpiece and the type elements.

14. The combination of claim 13 wherein said removable means comprises, a locking wire received within a bore formed in the holder and notches in the type elements aligned with the bore.

References Cited UNITED STATES PATENTS 123,266 1/1872 Laemmel 101407 X 1,081,361 12/1913 Brown 10l-43 X 1,773,673 8/1930 Halvorsen 101-407 X 2,089,794 8/1937 Hauer 101-28 2,472,040 5/1949 Brookfield 269-321X 2,543,140 2/1951 Vickerman 269321 X 2,655,099 10/1953 Rickenbach 101-28 2,777,385 1/1957 Bachy 101-42 2,925,773 12/1960 Kingsley 10l-407 X 3,202,096 8/1965 Ranger 101--250 3,218,059 11/1965 Andrew 269321 X ROBERT E. PULP REY, Primary Examiner. EUGENE H. ElSKI-IOLT, Assistant Examiner. 

